#include<bits/stdc++.h>
using namespace std;
const int len=1e5+10;
int n,ans;
int a[len];
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    sort(a+1,a+n+1);
    int tans=1;
    for(int i=2;i<=n;i++){
        if(a[i]==a[i-1]){
            tans++;
            if(ans)ans--;
        }
        else{
            ans+=tans-1;
            tans=1;
        }
    }
    cout<<ans+tans;
    return 0;
}
